University of Tokyo
University of Tokyo
Japan Aerospace Exploration Agency Institute of Space and Astronautical Science
University of Tokyo
Japan Aerospace Exploration Agency Institute of Space and Astronautical Science
A multilayer coating mirror of Mo/Si is usually used for space science in the spectral range of Extreme Ultraviolet (EUV), especially for He-2 (30.4 nm) radiation, because it is highly stable under vacuum and atmosphere. It has the fairly high reflectivity of 15-20 percent. But the space science community needs the higher reflective coating at 30.4 nm radiation for the future satellite missions, especially for the small satellite to reduce the size of optics. In this work, for developing a new multilayer mirror for Extreme Ultraviolet Imager (EUVI) onboard the Ionosphere-Mesosphere-upper Atmosphere-Plasmasphere mapping Satellite (IMAP), we report the performance of a multilayer consisting of Mg/SiC and the aging in reflectivity under atmosphere and vacuum conditions.
超高層大気撮像観測小型衛星(IMAP)搭載に向けたMg/SiC多層膜反射鏡の開発
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